Is Q45 a billable ICD-10-CM code?

No. Q45 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does Q45 sit in the tabular list?

Congenital malformations, deformations and chromosomal abnormalities (Q00-QA0), in the block Other congenital malformations of the digestive system (Q38-Q45).

Q45

Q45 — Other congenital malformations of digestive system

Non-billable headerICD-10-CM

Q45 is a non-billable header ICD-10-CM code for other congenital malformations of digestive system. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes2 — not included here, but may coexist

The excluded condition is not part of this code, but a patient can have both. You may code both.

congenital diaphragmatic hernia (Q79.0)
congenital hiatus hernia (Q40.1)

Risk adjustment

Q45 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Code to one of these instead Q45

6 child codes. Green means billable.

Questions about Q45

Is Q45 a billable ICD-10-CM code?: No. Q45 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does Q45 sit in the tabular list?: Congenital malformations, deformations and chromosomal abnormalities (Q00-QA0), in the block Other congenital malformations of the digestive system (Q38-Q45).